Commit | Line | Data |
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1cc2dcec EA |
1 | # include <stdio.h> |
2 | # include <sys/types.h> | |
3 | # include <sys/stat.h> | |
399058e3 | 4 | # include <sys/dir.h> |
629c0863 EA |
5 | # include <errno.h> |
6 | # include <signal.h> | |
1cc2dcec | 7 | # include <sysexits.h> |
7a8ba074 | 8 | # include <whoami.h> |
705c2473 | 9 | # include <pwd.h> |
1cc2dcec | 10 | |
27e713f7 EA |
11 | /* |
12 | ** SCCS.C -- human-oriented front end to the SCCS system. | |
13 | ** | |
14 | ** Without trying to add any functionality to speak of, this | |
15 | ** program tries to make SCCS a little more accessible to human | |
16 | ** types. The main thing it does is automatically put the | |
17 | ** string "SCCS/s." on the front of names. Also, it has a | |
18 | ** couple of things that are designed to shorten frequent | |
19 | ** combinations, e.g., "delget" which expands to a "delta" | |
20 | ** and a "get". | |
21 | ** | |
22 | ** This program can also function as a setuid front end. | |
23 | ** To do this, you should copy the source, renaming it to | |
24 | ** whatever you want, e.g., "syssccs". Change any defaults | |
25 | ** in the program (e.g., syssccs might default -d to | |
26 | ** "/usr/src/sys"). Then recompile and put the result | |
27 | ** as setuid to whomever you want. In this mode, sccs | |
28 | ** knows to not run setuid for certain programs in order | |
29 | ** to preserve security, and so forth. | |
30 | ** | |
31 | ** Usage: | |
32 | ** sccs [flags] command [args] | |
33 | ** | |
34 | ** Flags: | |
35 | ** -d<dir> <dir> represents a directory to search | |
36 | ** out of. It should be a full pathname | |
37 | ** for general usage. E.g., if <dir> is | |
38 | ** "/usr/src/sys", then a reference to the | |
39 | ** file "dev/bio.c" becomes a reference to | |
40 | ** "/usr/src/sys/dev/bio.c". | |
41 | ** -p<path> prepends <path> to the final component | |
42 | ** of the pathname. By default, this is | |
43 | ** "SCCS". For example, in the -d example | |
44 | ** above, the path then gets modified to | |
45 | ** "/usr/src/sys/dev/SCCS/s.bio.c". In | |
46 | ** more common usage (without the -d flag), | |
47 | ** "prog.c" would get modified to | |
48 | ** "SCCS/s.prog.c". In both cases, the | |
49 | ** "s." gets automatically prepended. | |
50 | ** -r run as the real user. | |
51 | ** | |
52 | ** Commands: | |
53 | ** admin, | |
54 | ** get, | |
55 | ** delta, | |
56 | ** rmdel, | |
57 | ** chghist, | |
58 | ** etc. Straight out of SCCS; only difference | |
59 | ** is that pathnames get modified as | |
60 | ** described above. | |
61 | ** edit Macro for "get -e". | |
62 | ** unedit Removes a file being edited, knowing | |
63 | ** about p-files, etc. | |
64 | ** delget Macro for "delta" followed by "get". | |
65 | ** deledit Macro for "delta" followed by "get -e". | |
66 | ** info Tell what files being edited. | |
67 | ** clean Remove all files that can be | |
68 | ** regenerated from SCCS files. | |
d266e8cb | 69 | ** check Like info, but return exit status, for |
27e713f7 EA |
70 | ** use in makefiles. |
71 | ** fix Remove a top delta & reedit, but save | |
72 | ** the previous changes in that delta. | |
73 | ** | |
74 | ** Compilation Flags: | |
75 | ** UIDUSER -- determine who the user is by looking at the | |
76 | ** uid rather than the login name -- for machines | |
77 | ** where SCCS gets the user in this way. | |
56151b9e | 78 | ** SCCSDIR -- if defined, forces the -d flag to take on |
d266e8cb EA |
79 | ** this value. This is so that the setuid |
80 | ** aspects of this program cannot be abused. | |
56151b9e EA |
81 | ** This flag also disables the -p flag. |
82 | ** SCCSPATH -- the default for the -p flag. | |
27082f2b EA |
83 | ** MYNAME -- the title this program should print when it |
84 | ** gives error messages. | |
27e713f7 EA |
85 | ** |
86 | ** Compilation Instructions: | |
87 | ** cc -O -n -s sccs.c | |
27082f2b EA |
88 | ** The flags listed above can be -D defined to simplify |
89 | ** recompilation for variant versions. | |
27e713f7 EA |
90 | ** |
91 | ** Author: | |
92 | ** Eric Allman, UCB/INGRES | |
56151b9e | 93 | ** Copyright 1980 Regents of the University of California |
27e713f7 EA |
94 | */ |
95 | ||
d8a47f3b | 96 | static char SccsId[] = "@(#)sccs.c 1.62 %G%"; |
2d351698 | 97 | \f |
56151b9e EA |
98 | /******************* Configuration Information ********************/ |
99 | ||
27082f2b EA |
100 | /* special defines for local berkeley systems */ |
101 | # include <whoami.h> | |
102 | ||
27e713f7 EA |
103 | # ifdef CSVAX |
104 | # define UIDUSER | |
56151b9e EA |
105 | # define PROGPATH(name) "/usr/local/name" |
106 | # endif CSVAX | |
107 | ||
f0b9a52d EA |
108 | # ifdef INGVAX |
109 | # define PROGPATH(name) "/usr/local/name" | |
110 | # endif INGVAX | |
111 | ||
0bc81196 EA |
112 | # ifdef CORY |
113 | # define PROGPATH(name) "/usr/eecs/bin/name" | |
114 | # endif CORY | |
115 | ||
27082f2b EA |
116 | /* end of berkeley systems defines */ |
117 | ||
118 | # ifndef SCCSPATH | |
2d351698 | 119 | # define SCCSPATH "SCCS" /* pathname in which to find s-files */ |
27082f2b | 120 | # endif NOT SCCSPATH |
56151b9e | 121 | |
27082f2b EA |
122 | # ifndef MYNAME |
123 | # define MYNAME "sccs" /* name used for printing errors */ | |
124 | # endif NOT MYNAME | |
27e713f7 | 125 | |
2d351698 EA |
126 | # ifndef PROGPATH |
127 | # define PROGPATH(name) "/usr/sccs/name" /* place to find binaries */ | |
128 | # endif PROGPATH | |
2a0234bf | 129 | |
2d351698 EA |
130 | /**************** End of Configuration Information ****************/ |
131 | \f | |
2a0234bf | 132 | typedef char bool; |
a97ecd0d EA |
133 | # define TRUE 1 |
134 | # define FALSE 0 | |
81dc6403 | 135 | |
e1e64d36 EA |
136 | # define bitset(bit, word) ((bool) ((bit) & (word))) |
137 | ||
1cc2dcec EA |
138 | struct sccsprog |
139 | { | |
140 | char *sccsname; /* name of SCCS routine */ | |
a97ecd0d EA |
141 | short sccsoper; /* opcode, see below */ |
142 | short sccsflags; /* flags, see below */ | |
1cc2dcec EA |
143 | char *sccspath; /* pathname of binary implementing */ |
144 | }; | |
145 | ||
a97ecd0d EA |
146 | /* values for sccsoper */ |
147 | # define PROG 0 /* call a program */ | |
e672376b | 148 | # define CMACRO 1 /* command substitution macro */ |
4535945e | 149 | # define FIX 2 /* fix a delta */ |
399058e3 | 150 | # define CLEAN 3 /* clean out recreatable files */ |
61886f2a | 151 | # define UNEDIT 4 /* unedit a file */ |
c9ac6819 | 152 | # define SHELL 5 /* call a shell file (like PROG) */ |
629c0863 | 153 | # define DIFFS 6 /* diff between sccs & file out */ |
73b61bcf | 154 | # define DODIFF 7 /* internal call to diff program */ |
a97ecd0d | 155 | |
2a0234bf | 156 | /* bits for sccsflags */ |
a97ecd0d EA |
157 | # define NO_SDOT 0001 /* no s. on front of args */ |
158 | # define REALUSER 0002 /* protected (e.g., admin) */ | |
1cc2dcec | 159 | |
89819fbe EA |
160 | /* modes for the "clean", "info", "check" ops */ |
161 | # define CLEANC 0 /* clean command */ | |
162 | # define INFOC 1 /* info command */ | |
163 | # define CHECKC 2 /* check command */ | |
bdd50a56 | 164 | # define TELLC 3 /* give list of files being edited */ |
89819fbe | 165 | |
2d351698 EA |
166 | /* |
167 | ** Description of commands known to this program. | |
168 | ** First argument puts the command into a class. Second arg is | |
169 | ** info regarding treatment of this command. Third arg is a | |
170 | ** list of flags this command accepts from macros, etc. Fourth | |
171 | ** arg is the pathname of the implementing program, or the | |
172 | ** macro definition, or the arg to a sub-algorithm. | |
173 | */ | |
7a8ba074 | 174 | |
1cc2dcec EA |
175 | struct sccsprog SccsProg[] = |
176 | { | |
6aac25be EA |
177 | "admin", PROG, REALUSER, PROGPATH(admin), |
178 | "chghist", PROG, 0, PROGPATH(rmdel), | |
179 | "comb", PROG, 0, PROGPATH(comb), | |
180 | "delta", PROG, 0, PROGPATH(delta), | |
181 | "get", PROG, 0, PROGPATH(get), | |
182 | "help", PROG, NO_SDOT, PROGPATH(help), | |
56b5d646 | 183 | "prs", PROG, 0, PROGPATH(prs), |
6aac25be EA |
184 | "prt", PROG, 0, PROGPATH(prt), |
185 | "rmdel", PROG, REALUSER, PROGPATH(rmdel), | |
56b5d646 | 186 | "val", PROG, 0, PROGPATH(val), |
6aac25be EA |
187 | "what", PROG, NO_SDOT, PROGPATH(what), |
188 | "sccsdiff", SHELL, REALUSER, PROGPATH(sccsdiff), | |
189 | "edit", CMACRO, NO_SDOT, "get -e", | |
190 | "delget", CMACRO, NO_SDOT, "delta:mysrp/get:ixbeskcl -t", | |
a479627e | 191 | "deledit", CMACRO, NO_SDOT, "delta:mysrp -n/get:ixbskcl -e -t -g", |
6aac25be EA |
192 | "fix", FIX, NO_SDOT, NULL, |
193 | "clean", CLEAN, REALUSER|NO_SDOT, (char *) CLEANC, | |
194 | "info", CLEAN, REALUSER|NO_SDOT, (char *) INFOC, | |
195 | "check", CLEAN, REALUSER|NO_SDOT, (char *) CHECKC, | |
196 | "tell", CLEAN, REALUSER|NO_SDOT, (char *) TELLC, | |
197 | "unedit", UNEDIT, NO_SDOT, NULL, | |
198 | "diffs", DIFFS, NO_SDOT|REALUSER, NULL, | |
73b61bcf | 199 | "-diff", DODIFF, NO_SDOT|REALUSER, PROGPATH(bdiff), |
5c7d3059 | 200 | "print", CMACRO, 0, "prt -e/get -p -m -s", |
d8d51f68 EA |
201 | "branch", CMACRO, NO_SDOT, |
202 | "get:ixrc -e -b/delta: -s -n -ybranch-place-holder/get:pl -e -t -g", | |
6aac25be | 203 | NULL, -1, 0, NULL |
1cc2dcec EA |
204 | }; |
205 | ||
2d351698 | 206 | /* one line from a p-file */ |
61886f2a EA |
207 | struct pfile |
208 | { | |
209 | char *p_osid; /* old SID */ | |
210 | char *p_nsid; /* new SID */ | |
211 | char *p_user; /* user who did edit */ | |
212 | char *p_date; /* date of get */ | |
213 | char *p_time; /* time of get */ | |
daa96559 | 214 | char *p_aux; /* extra info at end */ |
61886f2a EA |
215 | }; |
216 | ||
56151b9e EA |
217 | char *SccsPath = SCCSPATH; /* pathname of SCCS files */ |
218 | # ifdef SCCSDIR | |
219 | char *SccsDir = SCCSDIR; /* directory to begin search from */ | |
d266e8cb | 220 | # else |
56151b9e | 221 | char *SccsDir = ""; |
d266e8cb | 222 | # endif |
27082f2b | 223 | char MyName[] = MYNAME; /* name used in messages */ |
629c0863 | 224 | int OutFile = -1; /* override output file for commands */ |
2a0234bf | 225 | bool RealUser; /* if set, running as real user */ |
27e36d02 EA |
226 | # ifdef DEBUG |
227 | bool Debug; /* turn on tracing */ | |
228 | # endif | |
41b548c8 EA |
229 | # ifndef V6 |
230 | extern char *getenv(); | |
231 | # endif V6 | |
2d351698 | 232 | \f |
1cc2dcec EA |
233 | main(argc, argv) |
234 | int argc; | |
235 | char **argv; | |
236 | { | |
237 | register char *p; | |
1045e3ba | 238 | extern struct sccsprog *lookup(); |
e8a6a730 | 239 | register int i; |
41b548c8 EA |
240 | # ifndef V6 |
241 | # ifndef SCCSDIR | |
705c2473 EA |
242 | register struct passwd *pw; |
243 | extern struct passwd *getpwnam(); | |
244 | char buf[100]; | |
245 | ||
41b548c8 EA |
246 | /* pull "SccsDir" out of the environment (possibly) */ |
247 | p = getenv("PROJECT"); | |
705c2473 EA |
248 | if (p != NULL && p[0] != '\0') |
249 | { | |
250 | if (p[0] == '/') | |
251 | SccsDir = p; | |
252 | else | |
253 | { | |
254 | pw = getpwnam(p); | |
255 | if (pw == NULL) | |
256 | { | |
257 | usrerr("user %s does not exist", p); | |
258 | exit(EX_USAGE); | |
259 | } | |
260 | strcpy(buf, pw->pw_dir); | |
261 | strcat(buf, "/src"); | |
262 | if (access(buf, 0) < 0) | |
263 | { | |
264 | strcpy(buf, pw->pw_dir); | |
265 | strcat(buf, "/source"); | |
266 | if (access(buf, 0) < 0) | |
267 | { | |
268 | usrerr("project %s has no source!", p); | |
269 | exit(EX_USAGE); | |
270 | } | |
271 | } | |
272 | SccsDir = buf; | |
273 | } | |
274 | } | |
41b548c8 EA |
275 | # endif SCCSDIR |
276 | # endif V6 | |
277 | ||
1cc2dcec EA |
278 | /* |
279 | ** Detect and decode flags intended for this program. | |
280 | */ | |
281 | ||
a97ecd0d EA |
282 | if (argc < 2) |
283 | { | |
d266e8cb | 284 | fprintf(stderr, "Usage: %s [flags] command [flags]\n", MyName); |
a97ecd0d EA |
285 | exit(EX_USAGE); |
286 | } | |
287 | argv[argc] = NULL; | |
288 | ||
1045e3ba | 289 | if (lookup(argv[0]) == NULL) |
1cc2dcec | 290 | { |
1045e3ba | 291 | while ((p = *++argv) != NULL) |
1cc2dcec | 292 | { |
1045e3ba EA |
293 | if (*p != '-') |
294 | break; | |
295 | switch (*++p) | |
296 | { | |
297 | case 'r': /* run as real user */ | |
298 | setuid(getuid()); | |
299 | RealUser++; | |
300 | break; | |
301 | ||
56151b9e | 302 | # ifndef SCCSDIR |
1045e3ba EA |
303 | case 'p': /* path of sccs files */ |
304 | SccsPath = ++p; | |
e23f1541 EA |
305 | if (SccsPath[0] == '\0' && argv[1] != NULL) |
306 | SccsPath = *++argv; | |
1045e3ba EA |
307 | break; |
308 | ||
02ec3e87 EA |
309 | case 'd': /* directory to search from */ |
310 | SccsDir = ++p; | |
e23f1541 EA |
311 | if (SccsDir[0] == '\0' && argv[1] != NULL) |
312 | SccsDir = *++argv; | |
02ec3e87 | 313 | break; |
d266e8cb | 314 | # endif |
02ec3e87 | 315 | |
27e36d02 EA |
316 | # ifdef DEBUG |
317 | case 'T': /* trace */ | |
318 | Debug++; | |
319 | break; | |
320 | # endif | |
321 | ||
1045e3ba | 322 | default: |
d266e8cb | 323 | usrerr("unknown option -%s", p); |
1045e3ba EA |
324 | break; |
325 | } | |
1cc2dcec | 326 | } |
1045e3ba EA |
327 | if (SccsPath[0] == '\0') |
328 | SccsPath = "."; | |
1cc2dcec EA |
329 | } |
330 | ||
5e6a7fa9 | 331 | i = command(argv, FALSE, ""); |
e8a6a730 | 332 | exit(i); |
a97ecd0d | 333 | } |
2d351698 EA |
334 | \f |
335 | /* | |
e8a6a730 EA |
336 | ** COMMAND -- look up and perform a command |
337 | ** | |
338 | ** This routine is the guts of this program. Given an | |
339 | ** argument vector, it looks up the "command" (argv[0]) | |
340 | ** in the configuration table and does the necessary stuff. | |
341 | ** | |
342 | ** Parameters: | |
343 | ** argv -- an argument vector to process. | |
344 | ** forkflag -- if set, fork before executing the command. | |
1dbb3fe7 EA |
345 | ** editflag -- if set, only include flags listed in the |
346 | ** sccsklets field of the command descriptor. | |
347 | ** arg0 -- a space-seperated list of arguments to insert | |
348 | ** before argv. | |
e8a6a730 EA |
349 | ** |
350 | ** Returns: | |
351 | ** zero -- command executed ok. | |
352 | ** else -- error status. | |
353 | ** | |
354 | ** Side Effects: | |
355 | ** none. | |
356 | */ | |
a97ecd0d | 357 | |
5e6a7fa9 | 358 | command(argv, forkflag, arg0) |
a97ecd0d | 359 | char **argv; |
e672376b | 360 | bool forkflag; |
1dbb3fe7 | 361 | char *arg0; |
a97ecd0d EA |
362 | { |
363 | register struct sccsprog *cmd; | |
364 | register char *p; | |
e672376b | 365 | char buf[40]; |
1045e3ba | 366 | extern struct sccsprog *lookup(); |
1dbb3fe7 EA |
367 | char *nav[1000]; |
368 | char **np; | |
c9ac6819 | 369 | register char **ap; |
9c3bf134 | 370 | register int i; |
c9ac6819 | 371 | register char *q; |
9c3bf134 | 372 | extern bool unedit(); |
e8a6a730 | 373 | int rval = 0; |
1dbb3fe7 EA |
374 | extern char *index(); |
375 | extern char *makefile(); | |
5e6a7fa9 | 376 | char *editchs; |
4cd62a3c | 377 | extern char *tail(); |
27e36d02 EA |
378 | |
379 | # ifdef DEBUG | |
380 | if (Debug) | |
381 | { | |
1dbb3fe7 EA |
382 | printf("command:\n\t\"%s\"\n", arg0); |
383 | for (np = argv; *np != NULL; np++) | |
384 | printf("\t\"%s\"\n", *np); | |
27e36d02 EA |
385 | } |
386 | # endif | |
2a0234bf | 387 | |
1dbb3fe7 EA |
388 | /* |
389 | ** Copy arguments. | |
e1e64d36 EA |
390 | ** Copy from arg0 & if necessary at most one arg |
391 | ** from argv[0]. | |
1dbb3fe7 EA |
392 | */ |
393 | ||
c9ac6819 | 394 | np = ap = &nav[1]; |
5e6a7fa9 | 395 | editchs = NULL; |
ccd9c6ea | 396 | for (p = arg0, q = buf; *p != '\0' && *p != '/'; ) |
1dbb3fe7 EA |
397 | { |
398 | *np++ = q; | |
399 | while (*p == ' ') | |
400 | p++; | |
5e6a7fa9 | 401 | while (*p != ' ' && *p != '\0' && *p != '/' && *p != ':') |
1dbb3fe7 EA |
402 | *q++ = *p++; |
403 | *q++ = '\0'; | |
5e6a7fa9 EA |
404 | if (*p == ':') |
405 | { | |
406 | editchs = q; | |
ccd9c6ea | 407 | while (*++p != '\0' && *p != '/' && *p != ' ') |
5e6a7fa9 EA |
408 | *q++ = *p; |
409 | *q++ = '\0'; | |
410 | } | |
1dbb3fe7 EA |
411 | } |
412 | *np = NULL; | |
c9ac6819 | 413 | if (*ap == NULL) |
1dbb3fe7 EA |
414 | *np++ = *argv++; |
415 | ||
1cc2dcec EA |
416 | /* |
417 | ** Look up command. | |
c9ac6819 | 418 | ** At this point, *ap is the command name. |
1cc2dcec EA |
419 | */ |
420 | ||
c9ac6819 | 421 | cmd = lookup(*ap); |
1045e3ba | 422 | if (cmd == NULL) |
1cc2dcec | 423 | { |
c9ac6819 | 424 | usrerr("Unknown command \"%s\"", *ap); |
e8a6a730 | 425 | return (EX_USAGE); |
1cc2dcec EA |
426 | } |
427 | ||
1dbb3fe7 EA |
428 | /* |
429 | ** Copy remaining arguments doing editing as appropriate. | |
430 | */ | |
431 | ||
432 | for (; *argv != NULL; argv++) | |
433 | { | |
434 | p = *argv; | |
435 | if (*p == '-') | |
436 | { | |
5e6a7fa9 | 437 | if (p[1] == '\0' || editchs == NULL || index(editchs, p[1]) != NULL) |
1dbb3fe7 EA |
438 | *np++ = p; |
439 | } | |
440 | else | |
441 | { | |
442 | if (!bitset(NO_SDOT, cmd->sccsflags)) | |
443 | p = makefile(p); | |
444 | if (p != NULL) | |
445 | *np++ = p; | |
446 | } | |
447 | } | |
448 | *np = NULL; | |
449 | ||
2a0234bf | 450 | /* |
a97ecd0d | 451 | ** Interpret operation associated with this command. |
2a0234bf EA |
452 | */ |
453 | ||
a97ecd0d EA |
454 | switch (cmd->sccsoper) |
455 | { | |
c9ac6819 EA |
456 | case SHELL: /* call a shell file */ |
457 | *ap = cmd->sccspath; | |
458 | *--ap = "sh"; | |
459 | rval = callprog("/bin/sh", cmd->sccsflags, ap, forkflag); | |
460 | break; | |
461 | ||
a97ecd0d | 462 | case PROG: /* call an sccs prog */ |
c9ac6819 | 463 | rval = callprog(cmd->sccspath, cmd->sccsflags, ap, forkflag); |
e672376b EA |
464 | break; |
465 | ||
466 | case CMACRO: /* command macro */ | |
e1e64d36 | 467 | /* step through & execute each part of the macro */ |
e672376b EA |
468 | for (p = cmd->sccspath; *p != '\0'; p++) |
469 | { | |
1dbb3fe7 EA |
470 | q = p; |
471 | while (*p != '\0' && *p != '/') | |
472 | p++; | |
5e6a7fa9 | 473 | rval = command(&ap[1], *p != '\0', q); |
e8a6a730 EA |
474 | if (rval != 0) |
475 | break; | |
e672376b | 476 | } |
e8a6a730 | 477 | break; |
a97ecd0d | 478 | |
4535945e | 479 | case FIX: /* fix a delta */ |
c9ac6819 | 480 | if (strncmp(ap[1], "-r", 2) != 0) |
4535945e | 481 | { |
d266e8cb | 482 | usrerr("-r flag needed for fix command"); |
e8a6a730 | 483 | rval = EX_USAGE; |
4535945e EA |
484 | break; |
485 | } | |
e1e64d36 EA |
486 | |
487 | /* get the version with all changes */ | |
5e6a7fa9 | 488 | rval = command(&ap[1], TRUE, "get -k"); |
e1e64d36 EA |
489 | |
490 | /* now remove that version from the s-file */ | |
e8a6a730 | 491 | if (rval == 0) |
5e6a7fa9 | 492 | rval = command(&ap[1], TRUE, "rmdel:r"); |
e1e64d36 EA |
493 | |
494 | /* and edit the old version (but don't clobber new vers) */ | |
e8a6a730 | 495 | if (rval == 0) |
5e6a7fa9 | 496 | rval = command(&ap[2], FALSE, "get -e -g"); |
e8a6a730 | 497 | break; |
4535945e | 498 | |
399058e3 | 499 | case CLEAN: |
c03d198b | 500 | rval = clean((int) cmd->sccspath, ap); |
399058e3 EA |
501 | break; |
502 | ||
61886f2a | 503 | case UNEDIT: |
c9ac6819 | 504 | for (argv = np = &ap[1]; *argv != NULL; argv++) |
9c3bf134 | 505 | { |
1dbb3fe7 EA |
506 | if (unedit(*argv)) |
507 | *np++ = *argv; | |
9c3bf134 | 508 | } |
1dbb3fe7 | 509 | *np = NULL; |
e1e64d36 EA |
510 | |
511 | /* get all the files that we unedited successfully */ | |
64dc8483 | 512 | if (np > &ap[1]) |
5e6a7fa9 | 513 | rval = command(&ap[1], FALSE, "get"); |
61886f2a EA |
514 | break; |
515 | ||
629c0863 EA |
516 | case DIFFS: /* diff between s-file & edit file */ |
517 | /* find the end of the flag arguments */ | |
518 | for (np = &ap[1]; *np != NULL && **np == '-'; np++) | |
519 | continue; | |
520 | argv = np; | |
521 | ||
522 | /* for each file, do the diff */ | |
98501620 | 523 | p = argv[1]; |
629c0863 EA |
524 | while (*np != NULL) |
525 | { | |
e1e64d36 | 526 | /* messy, but we need a null terminated argv */ |
629c0863 | 527 | *argv = *np++; |
98501620 | 528 | argv[1] = NULL; |
4cd62a3c | 529 | i = dodiff(ap, tail(*argv)); |
629c0863 EA |
530 | if (rval == 0) |
531 | rval = i; | |
98501620 | 532 | argv[1] = p; |
629c0863 EA |
533 | } |
534 | break; | |
535 | ||
73b61bcf EA |
536 | case DODIFF: /* internal diff call */ |
537 | setuid(getuid()); | |
538 | for (np = ap; *np != NULL; np++) | |
539 | { | |
540 | if ((*np)[0] == '-' && (*np)[1] == 'C') | |
541 | (*np)[1] = 'c'; | |
542 | } | |
543 | ||
544 | /* insert "-" argument */ | |
545 | np[1] = NULL; | |
546 | np[0] = np[-1]; | |
547 | np[-1] = "-"; | |
548 | ||
549 | /* execute the diff program of choice */ | |
550 | # ifndef V6 | |
551 | execvp("diff", ap); | |
552 | # endif | |
553 | execv(cmd->sccspath, argv); | |
554 | syserr("cannot exec %s", cmd->sccspath); | |
555 | exit(EX_OSERR); | |
556 | ||
a97ecd0d | 557 | default: |
d266e8cb | 558 | syserr("oper %d", cmd->sccsoper); |
a97ecd0d EA |
559 | exit(EX_SOFTWARE); |
560 | } | |
e8a6a730 EA |
561 | # ifdef DEBUG |
562 | if (Debug) | |
563 | printf("command: rval=%d\n", rval); | |
564 | # endif | |
565 | return (rval); | |
a97ecd0d | 566 | } |
2d351698 EA |
567 | \f |
568 | /* | |
1045e3ba EA |
569 | ** LOOKUP -- look up an SCCS command name. |
570 | ** | |
571 | ** Parameters: | |
572 | ** name -- the name of the command to look up. | |
573 | ** | |
574 | ** Returns: | |
575 | ** ptr to command descriptor for this command. | |
576 | ** NULL if no such entry. | |
577 | ** | |
578 | ** Side Effects: | |
579 | ** none. | |
580 | */ | |
581 | ||
582 | struct sccsprog * | |
583 | lookup(name) | |
584 | char *name; | |
585 | { | |
586 | register struct sccsprog *cmd; | |
587 | ||
588 | for (cmd = SccsProg; cmd->sccsname != NULL; cmd++) | |
589 | { | |
590 | if (strcmp(cmd->sccsname, name) == 0) | |
591 | return (cmd); | |
592 | } | |
593 | return (NULL); | |
594 | } | |
2d351698 EA |
595 | \f |
596 | /* | |
e8a6a730 EA |
597 | ** CALLPROG -- call a program |
598 | ** | |
1dbb3fe7 | 599 | ** Used to call the SCCS programs. |
e8a6a730 EA |
600 | ** |
601 | ** Parameters: | |
602 | ** progpath -- pathname of the program to call. | |
603 | ** flags -- status flags from the command descriptors. | |
604 | ** argv -- an argument vector to pass to the program. | |
605 | ** forkflag -- if true, fork before calling, else just | |
606 | ** exec. | |
607 | ** | |
608 | ** Returns: | |
609 | ** The exit status of the program. | |
610 | ** Nothing if forkflag == FALSE. | |
611 | ** | |
612 | ** Side Effects: | |
613 | ** Can exit if forkflag == FALSE. | |
614 | */ | |
4535945e | 615 | |
a97ecd0d EA |
616 | callprog(progpath, flags, argv, forkflag) |
617 | char *progpath; | |
618 | short flags; | |
619 | char **argv; | |
620 | bool forkflag; | |
621 | { | |
a97ecd0d | 622 | register int i; |
e672376b | 623 | auto int st; |
1dbb3fe7 EA |
624 | |
625 | # ifdef DEBUG | |
626 | if (Debug) | |
627 | { | |
628 | printf("callprog:\n"); | |
629 | for (i = 0; argv[i] != NULL; i++) | |
630 | printf("\t\"%s\"\n", argv[i]); | |
631 | } | |
632 | # endif | |
a97ecd0d EA |
633 | |
634 | if (*argv == NULL) | |
635 | return (-1); | |
2a0234bf | 636 | |
1cc2dcec | 637 | /* |
4535945e | 638 | ** Fork if appropriate. |
1cc2dcec EA |
639 | */ |
640 | ||
a97ecd0d EA |
641 | if (forkflag) |
642 | { | |
27e36d02 EA |
643 | # ifdef DEBUG |
644 | if (Debug) | |
645 | printf("Forking\n"); | |
646 | # endif | |
a97ecd0d EA |
647 | i = fork(); |
648 | if (i < 0) | |
649 | { | |
d266e8cb | 650 | syserr("cannot fork"); |
a97ecd0d EA |
651 | exit(EX_OSERR); |
652 | } | |
653 | else if (i > 0) | |
e672376b EA |
654 | { |
655 | wait(&st); | |
e8a6a730 EA |
656 | if ((st & 0377) == 0) |
657 | st = (st >> 8) & 0377; | |
629c0863 EA |
658 | if (OutFile >= 0) |
659 | { | |
660 | close(OutFile); | |
661 | OutFile = -1; | |
662 | } | |
e672376b EA |
663 | return (st); |
664 | } | |
a97ecd0d | 665 | } |
629c0863 EA |
666 | else if (OutFile >= 0) |
667 | { | |
668 | syserr("callprog: setting stdout w/o forking"); | |
669 | exit(EX_SOFTWARE); | |
670 | } | |
a97ecd0d | 671 | |
629c0863 | 672 | /* set protection as appropriate */ |
a97ecd0d EA |
673 | if (bitset(REALUSER, flags)) |
674 | setuid(getuid()); | |
a97ecd0d | 675 | |
629c0863 EA |
676 | /* change standard input & output if needed */ |
677 | if (OutFile >= 0) | |
678 | { | |
679 | close(1); | |
680 | dup(OutFile); | |
681 | close(OutFile); | |
682 | } | |
683 | ||
684 | /* call real SCCS program */ | |
4535945e | 685 | execv(progpath, argv); |
d266e8cb | 686 | syserr("cannot execute %s", progpath); |
1cc2dcec | 687 | exit(EX_UNAVAILABLE); |
64dc8483 | 688 | /*NOTREACHED*/ |
1cc2dcec | 689 | } |
2d351698 EA |
690 | \f |
691 | /* | |
e2758dc3 EA |
692 | ** MAKEFILE -- make filename of SCCS file |
693 | ** | |
694 | ** If the name passed is already the name of an SCCS file, | |
695 | ** just return it. Otherwise, munge the name into the name | |
696 | ** of the actual SCCS file. | |
697 | ** | |
698 | ** There are cases when it is not clear what you want to | |
699 | ** do. For example, if SccsPath is an absolute pathname | |
700 | ** and the name given is also an absolute pathname, we go | |
701 | ** for SccsPath (& only use the last component of the name | |
702 | ** passed) -- this is important for security reasons (if | |
703 | ** sccs is being used as a setuid front end), but not | |
704 | ** particularly intuitive. | |
705 | ** | |
706 | ** Parameters: | |
707 | ** name -- the file name to be munged. | |
708 | ** | |
709 | ** Returns: | |
710 | ** The pathname of the sccs file. | |
711 | ** NULL on error. | |
712 | ** | |
713 | ** Side Effects: | |
714 | ** none. | |
715 | */ | |
1cc2dcec EA |
716 | |
717 | char * | |
718 | makefile(name) | |
719 | char *name; | |
720 | { | |
721 | register char *p; | |
1cc2dcec | 722 | char buf[512]; |
1cc2dcec | 723 | extern char *malloc(); |
e2758dc3 | 724 | extern char *rindex(); |
8e7b9e7e EA |
725 | extern bool isdir(); |
726 | register char *q; | |
e2758dc3 EA |
727 | |
728 | p = rindex(name, '/'); | |
729 | if (p == NULL) | |
730 | p = name; | |
731 | else | |
732 | p++; | |
1cc2dcec EA |
733 | |
734 | /* | |
8e7b9e7e | 735 | ** See if the name can be used as-is. |
1cc2dcec EA |
736 | */ |
737 | ||
8e7b9e7e EA |
738 | if (SccsPath[0] != '/' || name[0] == '/' || strncmp(name, "./", 2) == 0) |
739 | { | |
740 | if (strncmp(p, "s.", 2) == 0) | |
741 | return (name); | |
742 | if (isdir(name)) | |
743 | return (name); | |
744 | } | |
e2758dc3 EA |
745 | |
746 | /* | |
8e7b9e7e | 747 | ** Create the actual pathname. |
e2758dc3 EA |
748 | */ |
749 | ||
e1e64d36 | 750 | /* first the directory part */ |
8e7b9e7e | 751 | if (name[0] != '/') |
1cc2dcec | 752 | { |
02ec3e87 | 753 | strcpy(buf, SccsDir); |
e2758dc3 EA |
754 | strcat(buf, "/"); |
755 | } | |
756 | else | |
757 | strcpy(buf, ""); | |
e1e64d36 EA |
758 | |
759 | /* then the head of the pathname */ | |
8e7b9e7e EA |
760 | strncat(buf, name, p - name); |
761 | q = &buf[strlen(buf)]; | |
762 | strcpy(q, p); | |
763 | if (strncmp(p, "s.", 2) != 0 && !isdir(buf)) | |
e2758dc3 | 764 | { |
e1e64d36 | 765 | /* sorry, no; copy the SCCS pathname & the "s." */ |
02ec3e87 EA |
766 | strcpy(q, SccsPath); |
767 | strcat(buf, "/s."); | |
e1e64d36 EA |
768 | |
769 | /* and now the end of the name */ | |
e2758dc3 EA |
770 | strcat(buf, p); |
771 | } | |
1cc2dcec | 772 | |
e1e64d36 | 773 | /* if i haven't changed it, why did I do all this? */ |
02ec3e87 EA |
774 | if (strcmp(buf, name) == 0) |
775 | p = name; | |
776 | ||
777 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
1cc2dcec | 778 | } |
399058e3 | 779 | \f/* |
8e7b9e7e EA |
780 | ** ISDIR -- return true if the argument is a directory. |
781 | ** | |
782 | ** Parameters: | |
783 | ** name -- the pathname of the file to check. | |
784 | ** | |
785 | ** Returns: | |
786 | ** TRUE if 'name' is a directory, FALSE otherwise. | |
787 | ** | |
788 | ** Side Effects: | |
789 | ** none. | |
790 | */ | |
791 | ||
792 | bool | |
793 | isdir(name) | |
794 | char *name; | |
795 | { | |
796 | struct stat stbuf; | |
797 | ||
798 | return (stat(name, &stbuf) >= 0 && (stbuf.st_mode & S_IFMT) == S_IFDIR); | |
799 | } | |
2d351698 EA |
800 | \f |
801 | /* | |
e2758dc3 EA |
802 | ** SAFEPATH -- determine whether a pathname is "safe" |
803 | ** | |
804 | ** "Safe" pathnames only allow you to get deeper into the | |
805 | ** directory structure, i.e., full pathnames and ".." are | |
806 | ** not allowed. | |
807 | ** | |
808 | ** Parameters: | |
809 | ** p -- the name to check. | |
810 | ** | |
811 | ** Returns: | |
812 | ** TRUE -- if the path is safe. | |
813 | ** FALSE -- if the path is not safe. | |
814 | ** | |
815 | ** Side Effects: | |
816 | ** Prints a message if the path is not safe. | |
817 | */ | |
818 | ||
819 | bool | |
820 | safepath(p) | |
821 | register char *p; | |
822 | { | |
823 | extern char *index(); | |
824 | ||
825 | if (*p != '/') | |
826 | { | |
827 | while (strncmp(p, "../", 3) != 0 && strcmp(p, "..") != 0) | |
828 | { | |
829 | p = index(p, '/'); | |
830 | if (p == NULL) | |
831 | return (TRUE); | |
832 | p++; | |
833 | } | |
834 | } | |
835 | ||
836 | printf("You may not use full pathnames or \"..\"\n"); | |
837 | return (FALSE); | |
838 | } | |
2d351698 EA |
839 | \f |
840 | /* | |
399058e3 EA |
841 | ** CLEAN -- clean out recreatable files |
842 | ** | |
843 | ** Any file for which an "s." file exists but no "p." file | |
844 | ** exists in the current directory is purged. | |
845 | ** | |
846 | ** Parameters: | |
c03d198b EA |
847 | ** mode -- tells whether this came from a "clean", "info", or |
848 | ** "check" command. | |
849 | ** argv -- the rest of the argument vector. | |
399058e3 EA |
850 | ** |
851 | ** Returns: | |
852 | ** none. | |
853 | ** | |
854 | ** Side Effects: | |
89819fbe EA |
855 | ** Removes files in the current directory. |
856 | ** Prints information regarding files being edited. | |
857 | ** Exits if a "check" command. | |
399058e3 EA |
858 | */ |
859 | ||
c03d198b | 860 | clean(mode, argv) |
89819fbe | 861 | int mode; |
c03d198b | 862 | char **argv; |
399058e3 EA |
863 | { |
864 | struct direct dir; | |
399058e3 | 865 | char buf[100]; |
705c2473 | 866 | char *bufend; |
db4904e0 EA |
867 | register FILE *dirfd; |
868 | register char *basefile; | |
d7f27f60 | 869 | bool gotedit; |
c03d198b | 870 | bool gotpfent; |
bb9b2f29 | 871 | FILE *pfp; |
c03d198b EA |
872 | bool nobranch = FALSE; |
873 | extern struct pfile *getpfent(); | |
874 | register struct pfile *pf; | |
875 | register char **ap; | |
6aac25be EA |
876 | extern char *username(); |
877 | char *usernm = NULL; | |
705c2473 EA |
878 | char *subdir = NULL; |
879 | char *cmdname; | |
c03d198b EA |
880 | |
881 | /* | |
882 | ** Process the argv | |
883 | */ | |
884 | ||
705c2473 EA |
885 | cmdname = *argv; |
886 | for (ap = argv; *++ap != NULL; ) | |
c03d198b | 887 | { |
6aac25be EA |
888 | if (**ap == '-') |
889 | { | |
890 | /* we have a flag */ | |
891 | switch ((*ap)[1]) | |
892 | { | |
893 | case 'b': | |
894 | nobranch = TRUE; | |
895 | break; | |
896 | ||
897 | case 'u': | |
898 | if ((*ap)[2] != '\0') | |
899 | usernm = &(*ap)[2]; | |
900 | else if (ap[1] != NULL && ap[1][0] != '-') | |
901 | usernm = *++ap; | |
902 | else | |
903 | usernm = username(); | |
904 | break; | |
905 | } | |
906 | } | |
705c2473 EA |
907 | else |
908 | { | |
909 | if (subdir != NULL) | |
910 | usrerr("too many args"); | |
911 | else | |
912 | subdir = *ap; | |
913 | } | |
c03d198b | 914 | } |
399058e3 | 915 | |
e1e64d36 EA |
916 | /* |
917 | ** Find and open the SCCS directory. | |
918 | */ | |
919 | ||
0c925940 EA |
920 | strcpy(buf, SccsDir); |
921 | if (buf[0] != '\0') | |
922 | strcat(buf, "/"); | |
705c2473 EA |
923 | if (subdir != NULL) |
924 | { | |
925 | strcat(buf, subdir); | |
926 | strcat(buf, "/"); | |
927 | } | |
0c925940 | 928 | strcat(buf, SccsPath); |
705c2473 | 929 | bufend = &buf[strlen(buf)]; |
e1e64d36 | 930 | |
0c925940 | 931 | dirfd = fopen(buf, "r"); |
399058e3 EA |
932 | if (dirfd == NULL) |
933 | { | |
0c925940 | 934 | usrerr("cannot open %s", buf); |
e8a6a730 | 935 | return (EX_NOINPUT); |
399058e3 EA |
936 | } |
937 | ||
938 | /* | |
939 | ** Scan the SCCS directory looking for s. files. | |
e1e64d36 EA |
940 | ** gotedit tells whether we have tried to clean any |
941 | ** files that are being edited. | |
399058e3 EA |
942 | */ |
943 | ||
d7f27f60 | 944 | gotedit = FALSE; |
64dc8483 | 945 | while (fread((char *)&dir, sizeof dir, 1, dirfd) != NULL) |
399058e3 | 946 | { |
b8d1a34d | 947 | if (dir.d_ino == 0 || strncmp(dir.d_name, "s.", 2) != 0) |
399058e3 EA |
948 | continue; |
949 | ||
950 | /* got an s. file -- see if the p. file exists */ | |
705c2473 EA |
951 | strcpy(bufend, "/p."); |
952 | basefile = bufend + 3; | |
b8d1a34d | 953 | strncpy(basefile, &dir.d_name[2], sizeof dir.d_name - 2); |
bb9b2f29 | 954 | basefile[sizeof dir.d_name - 2] = '\0'; |
c03d198b EA |
955 | |
956 | /* | |
957 | ** open and scan the p-file. | |
958 | ** 'gotpfent' tells if we have found a valid p-file | |
959 | ** entry. | |
960 | */ | |
961 | ||
bb9b2f29 | 962 | pfp = fopen(buf, "r"); |
c03d198b | 963 | gotpfent = FALSE; |
bb9b2f29 | 964 | if (pfp != NULL) |
db4904e0 | 965 | { |
e1e64d36 | 966 | /* the file exists -- report it's contents */ |
c03d198b | 967 | while ((pf = getpfent(pfp)) != NULL) |
bdd50a56 | 968 | { |
c03d198b EA |
969 | if (nobranch && isbranch(pf->p_nsid)) |
970 | continue; | |
6aac25be EA |
971 | if (usernm != NULL && strcmp(usernm, pf->p_user) != 0 && mode != CLEANC) |
972 | continue; | |
c03d198b EA |
973 | gotedit = TRUE; |
974 | gotpfent = TRUE; | |
975 | if (mode == TELLC) | |
976 | { | |
977 | printf("%s\n", basefile); | |
978 | break; | |
979 | } | |
daa96559 EA |
980 | printf("%12s: being edited: ", basefile); |
981 | putpfent(pf, stdout); | |
bdd50a56 | 982 | } |
bb9b2f29 | 983 | fclose(pfp); |
db4904e0 | 984 | } |
399058e3 EA |
985 | |
986 | /* the s. file exists and no p. file exists -- unlink the g-file */ | |
9e46d67d | 987 | if (mode == CLEANC && !gotpfent) |
db4904e0 | 988 | { |
b8d1a34d | 989 | strncpy(buf, &dir.d_name[2], sizeof dir.d_name - 2); |
db4904e0 EA |
990 | buf[sizeof dir.d_name - 2] = '\0'; |
991 | unlink(buf); | |
992 | } | |
399058e3 EA |
993 | } |
994 | ||
e1e64d36 | 995 | /* cleanup & report results */ |
399058e3 | 996 | fclose(dirfd); |
89819fbe | 997 | if (!gotedit && mode == INFOC) |
6aac25be EA |
998 | { |
999 | printf("Nothing being edited"); | |
1000 | if (nobranch) | |
1001 | printf(" (on trunk)"); | |
1002 | if (usernm == NULL) | |
1003 | printf("\n"); | |
1004 | else | |
1005 | printf(" by %s\n", usernm); | |
1006 | } | |
89819fbe EA |
1007 | if (mode == CHECKC) |
1008 | exit(gotedit); | |
e8a6a730 | 1009 | return (EX_OK); |
399058e3 | 1010 | } |
2d351698 | 1011 | \f |
c03d198b EA |
1012 | /* |
1013 | ** ISBRANCH -- is the SID a branch? | |
1014 | ** | |
1015 | ** Parameters: | |
1016 | ** sid -- the sid to check. | |
1017 | ** | |
1018 | ** Returns: | |
1019 | ** TRUE if the sid represents a branch. | |
1020 | ** FALSE otherwise. | |
1021 | ** | |
1022 | ** Side Effects: | |
1023 | ** none. | |
1024 | */ | |
1025 | ||
1026 | isbranch(sid) | |
1027 | char *sid; | |
1028 | { | |
1029 | register char *p; | |
1030 | int dots; | |
1031 | ||
1032 | dots = 0; | |
1033 | for (p = sid; *p != '\0'; p++) | |
1034 | { | |
1035 | if (*p == '.') | |
1036 | dots++; | |
1037 | if (dots > 1) | |
1038 | return (TRUE); | |
1039 | } | |
1040 | return (FALSE); | |
1041 | } | |
1042 | \f | |
2d351698 | 1043 | /* |
61886f2a EA |
1044 | ** UNEDIT -- unedit a file |
1045 | ** | |
1046 | ** Checks to see that the current user is actually editting | |
1047 | ** the file and arranges that s/he is not editting it. | |
1048 | ** | |
1049 | ** Parameters: | |
fdca7108 | 1050 | ** fn -- the name of the file to be unedited. |
61886f2a EA |
1051 | ** |
1052 | ** Returns: | |
9c3bf134 EA |
1053 | ** TRUE -- if the file was successfully unedited. |
1054 | ** FALSE -- if the file was not unedited for some | |
1055 | ** reason. | |
61886f2a EA |
1056 | ** |
1057 | ** Side Effects: | |
1058 | ** fn is removed | |
1059 | ** entries are removed from pfile. | |
1060 | */ | |
1061 | ||
9c3bf134 | 1062 | bool |
61886f2a EA |
1063 | unedit(fn) |
1064 | char *fn; | |
1065 | { | |
1066 | register FILE *pfp; | |
1067 | char *pfn; | |
1068 | static char tfn[] = "/tmp/sccsXXXXX"; | |
1069 | FILE *tfp; | |
61886f2a EA |
1070 | register char *q; |
1071 | bool delete = FALSE; | |
1072 | bool others = FALSE; | |
1073 | char *myname; | |
6aac25be | 1074 | extern char *username(); |
61886f2a | 1075 | struct pfile *pent; |
c03d198b | 1076 | extern struct pfile *getpfent(); |
61886f2a | 1077 | char buf[120]; |
1dbb3fe7 | 1078 | extern char *makefile(); |
61886f2a EA |
1079 | |
1080 | /* make "s." filename & find the trailing component */ | |
1081 | pfn = makefile(fn); | |
e2758dc3 EA |
1082 | if (pfn == NULL) |
1083 | return (FALSE); | |
1084 | q = rindex(pfn, '/'); | |
1085 | if (q == NULL) | |
1086 | q = &pfn[-1]; | |
1087 | if (q[1] != 's' || q[2] != '.') | |
61886f2a | 1088 | { |
d266e8cb | 1089 | usrerr("bad file name \"%s\"", fn); |
9c3bf134 | 1090 | return (FALSE); |
61886f2a EA |
1091 | } |
1092 | ||
e1e64d36 | 1093 | /* turn "s." into "p." & try to open it */ |
61886f2a EA |
1094 | *++q = 'p'; |
1095 | ||
1096 | pfp = fopen(pfn, "r"); | |
1097 | if (pfp == NULL) | |
1098 | { | |
fdca7108 | 1099 | printf("%12s: not being edited\n", fn); |
9c3bf134 | 1100 | return (FALSE); |
61886f2a EA |
1101 | } |
1102 | ||
e1e64d36 | 1103 | /* create temp file for editing p-file */ |
61886f2a EA |
1104 | mktemp(tfn); |
1105 | tfp = fopen(tfn, "w"); | |
1106 | if (tfp == NULL) | |
1107 | { | |
d266e8cb | 1108 | usrerr("cannot create \"%s\"", tfn); |
61886f2a EA |
1109 | exit(EX_OSERR); |
1110 | } | |
1111 | ||
e1e64d36 | 1112 | /* figure out who I am */ |
6aac25be | 1113 | myname = username(); |
e1e64d36 EA |
1114 | |
1115 | /* | |
1116 | ** Copy p-file to temp file, doing deletions as needed. | |
1117 | */ | |
1118 | ||
c03d198b | 1119 | while ((pent = getpfent(pfp)) != NULL) |
61886f2a EA |
1120 | { |
1121 | if (strcmp(pent->p_user, myname) == 0) | |
1122 | { | |
1123 | /* a match */ | |
1124 | delete++; | |
1125 | } | |
1126 | else | |
1127 | { | |
e1e64d36 | 1128 | /* output it again */ |
daa96559 | 1129 | putpfent(pent, tfp); |
61886f2a EA |
1130 | others++; |
1131 | } | |
1132 | } | |
1133 | ||
1134 | /* do final cleanup */ | |
1135 | if (others) | |
1136 | { | |
e1e64d36 | 1137 | /* copy it back (perhaps it should be linked?) */ |
61886f2a EA |
1138 | if (freopen(tfn, "r", tfp) == NULL) |
1139 | { | |
d266e8cb | 1140 | syserr("cannot reopen \"%s\"", tfn); |
61886f2a EA |
1141 | exit(EX_OSERR); |
1142 | } | |
1143 | if (freopen(pfn, "w", pfp) == NULL) | |
1144 | { | |
d266e8cb | 1145 | usrerr("cannot create \"%s\"", pfn); |
9c3bf134 | 1146 | return (FALSE); |
61886f2a EA |
1147 | } |
1148 | while (fgets(buf, sizeof buf, tfp) != NULL) | |
1149 | fputs(buf, pfp); | |
1150 | } | |
1151 | else | |
1152 | { | |
e1e64d36 | 1153 | /* it's empty -- remove it */ |
61886f2a EA |
1154 | unlink(pfn); |
1155 | } | |
1156 | fclose(tfp); | |
1157 | fclose(pfp); | |
1158 | unlink(tfn); | |
1159 | ||
e1e64d36 | 1160 | /* actually remove the g-file */ |
61886f2a EA |
1161 | if (delete) |
1162 | { | |
4cd62a3c EA |
1163 | unlink(tail(fn)); |
1164 | printf("%12s: removed\n", tail(fn)); | |
9c3bf134 | 1165 | return (TRUE); |
61886f2a EA |
1166 | } |
1167 | else | |
1168 | { | |
fdca7108 | 1169 | printf("%12s: not being edited by you\n", fn); |
9c3bf134 | 1170 | return (FALSE); |
61886f2a EA |
1171 | } |
1172 | } | |
2d351698 | 1173 | \f |
629c0863 EA |
1174 | /* |
1175 | ** DODIFF -- diff an s-file against a g-file | |
1176 | ** | |
1177 | ** Parameters: | |
1178 | ** getv -- argv for the 'get' command. | |
1179 | ** gfile -- name of the g-file to diff against. | |
1180 | ** | |
1181 | ** Returns: | |
1182 | ** Result of get. | |
1183 | ** | |
1184 | ** Side Effects: | |
1185 | ** none. | |
1186 | */ | |
1187 | ||
1188 | dodiff(getv, gfile) | |
1189 | char **getv; | |
1190 | char *gfile; | |
1191 | { | |
1192 | int pipev[2]; | |
1193 | int rval; | |
1194 | register int i; | |
1195 | register int pid; | |
1196 | auto int st; | |
1197 | extern int errno; | |
1198 | int (*osig)(); | |
8dace933 EA |
1199 | register char *p; |
1200 | register char **ap; | |
1201 | bool makescript = FALSE; | |
629c0863 | 1202 | |
8dace933 EA |
1203 | for (ap = getv; *ap != NULL; ap++) |
1204 | { | |
1205 | p = *ap; | |
1206 | if (p[0] == '-') | |
1207 | { | |
1208 | switch (p[1]) | |
1209 | { | |
1210 | case 'E': | |
1211 | p[1] = 'e'; | |
1212 | makescript = TRUE; | |
1213 | break; | |
1214 | } | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | if (makescript) | |
1219 | { | |
1220 | printf("sccs edit %s\n", gfile); | |
1221 | printf("ed - %s << 'xxEOFxx'\n", gfile); | |
1222 | } | |
1223 | else | |
1224 | printf("\n------- %s -------\n", gfile); | |
73b61bcf | 1225 | fflush(stdout); |
d597ad9e | 1226 | |
e1e64d36 | 1227 | /* create context for diff to run in */ |
629c0863 EA |
1228 | if (pipe(pipev) < 0) |
1229 | { | |
1230 | syserr("dodiff: pipe failed"); | |
1231 | exit(EX_OSERR); | |
1232 | } | |
1233 | if ((pid = fork()) < 0) | |
1234 | { | |
1235 | syserr("dodiff: fork failed"); | |
1236 | exit(EX_OSERR); | |
1237 | } | |
1238 | else if (pid > 0) | |
1239 | { | |
1240 | /* in parent; run get */ | |
1241 | OutFile = pipev[1]; | |
1242 | close(pipev[0]); | |
73b61bcf | 1243 | rval = command(&getv[1], TRUE, "get:rcixt -s -k -p"); |
629c0863 EA |
1244 | osig = signal(SIGINT, SIG_IGN); |
1245 | while (((i = wait(&st)) >= 0 && i != pid) || errno == EINTR) | |
1246 | errno = 0; | |
1247 | signal(SIGINT, osig); | |
1248 | /* ignore result of diff */ | |
1249 | } | |
1250 | else | |
1251 | { | |
1252 | /* in child, run diff */ | |
1253 | if (close(pipev[1]) < 0 || close(0) < 0 || | |
1254 | dup(pipev[0]) != 0 || close(pipev[0]) < 0) | |
1255 | { | |
1256 | syserr("dodiff: magic failed"); | |
1257 | exit(EX_OSERR); | |
1258 | } | |
73b61bcf | 1259 | command(&getv[1], FALSE, "-diff:elsfhbC"); |
629c0863 | 1260 | } |
8dace933 EA |
1261 | |
1262 | if (makescript) | |
1263 | { | |
1264 | printf("w\n"); | |
1265 | printf("q\n"); | |
1266 | printf("'xxEOFxx'\n"); | |
1267 | printf("sccs delta %s\n", gfile); | |
1268 | } | |
1269 | ||
629c0863 EA |
1270 | return (rval); |
1271 | } | |
1272 | \f | |
4cd62a3c EA |
1273 | /* |
1274 | ** TAIL -- return tail of filename. | |
1275 | ** | |
1276 | ** Parameters: | |
1277 | ** fn -- the filename. | |
1278 | ** | |
1279 | ** Returns: | |
1280 | ** a pointer to the tail of the filename; e.g., given | |
1281 | ** "cmd/ls.c", "ls.c" is returned. | |
1282 | ** | |
1283 | ** Side Effects: | |
1284 | ** none. | |
1285 | */ | |
1286 | ||
1287 | char * | |
1288 | tail(fn) | |
1289 | register char *fn; | |
1290 | { | |
1291 | register char *p; | |
1292 | ||
1293 | for (p = fn; *p != 0; p++) | |
1294 | if (*p == '/' && p[1] != '\0' && p[1] != '/') | |
1295 | fn = &p[1]; | |
1296 | return (fn); | |
1297 | } | |
1298 | \f | |
2d351698 | 1299 | /* |
c03d198b | 1300 | ** GETPFENT -- get an entry from the p-file |
61886f2a EA |
1301 | ** |
1302 | ** Parameters: | |
1303 | ** pfp -- p-file file pointer | |
1304 | ** | |
1305 | ** Returns: | |
1306 | ** pointer to p-file struct for next entry | |
1307 | ** NULL on EOF or error | |
1308 | ** | |
1309 | ** Side Effects: | |
1310 | ** Each call wipes out results of previous call. | |
1311 | */ | |
1312 | ||
1313 | struct pfile * | |
c03d198b | 1314 | getpfent(pfp) |
61886f2a EA |
1315 | FILE *pfp; |
1316 | { | |
1317 | static struct pfile ent; | |
1318 | static char buf[120]; | |
1319 | register char *p; | |
1320 | extern char *nextfield(); | |
1321 | ||
1322 | if (fgets(buf, sizeof buf, pfp) == NULL) | |
1323 | return (NULL); | |
1324 | ||
1325 | ent.p_osid = p = buf; | |
1326 | ent.p_nsid = p = nextfield(p); | |
1327 | ent.p_user = p = nextfield(p); | |
1328 | ent.p_date = p = nextfield(p); | |
1329 | ent.p_time = p = nextfield(p); | |
daa96559 | 1330 | ent.p_aux = p = nextfield(p); |
61886f2a EA |
1331 | |
1332 | return (&ent); | |
1333 | } | |
1334 | ||
1335 | ||
1336 | char * | |
1337 | nextfield(p) | |
1338 | register char *p; | |
1339 | { | |
1340 | if (p == NULL || *p == '\0') | |
1341 | return (NULL); | |
1342 | while (*p != ' ' && *p != '\n' && *p != '\0') | |
1343 | p++; | |
1344 | if (*p == '\n' || *p == '\0') | |
1345 | { | |
1346 | *p = '\0'; | |
1347 | return (NULL); | |
1348 | } | |
1349 | *p++ = '\0'; | |
1350 | return (p); | |
1351 | } | |
daa96559 EA |
1352 | \f/* |
1353 | ** PUTPFENT -- output a p-file entry to a file | |
1354 | ** | |
1355 | ** Parameters: | |
1356 | ** pf -- the p-file entry | |
1357 | ** f -- the file to put it on. | |
1358 | ** | |
1359 | ** Returns: | |
1360 | ** none. | |
1361 | ** | |
1362 | ** Side Effects: | |
1363 | ** pf is written onto file f. | |
1364 | */ | |
1365 | ||
1366 | putpfent(pf, f) | |
1367 | register struct pfile *pf; | |
1368 | register FILE *f; | |
1369 | { | |
1370 | fprintf(f, "%s %s %s %s %s", pf->p_osid, pf->p_nsid, | |
1371 | pf->p_user, pf->p_date, pf->p_time); | |
1372 | if (pf->p_aux != NULL) | |
1373 | fprintf(f, " %s", pf->p_aux); | |
1374 | else | |
1375 | fprintf(f, "\n"); | |
1376 | } | |
2d351698 EA |
1377 | \f |
1378 | /* | |
d266e8cb EA |
1379 | ** USRERR -- issue user-level error |
1380 | ** | |
1381 | ** Parameters: | |
1382 | ** f -- format string. | |
1383 | ** p1-p3 -- parameters to a printf. | |
1384 | ** | |
1385 | ** Returns: | |
1386 | ** -1 | |
1387 | ** | |
1388 | ** Side Effects: | |
1389 | ** none. | |
1390 | */ | |
1391 | ||
64dc8483 | 1392 | /*VARARGS1*/ |
d266e8cb EA |
1393 | usrerr(f, p1, p2, p3) |
1394 | char *f; | |
1395 | { | |
1396 | fprintf(stderr, "\n%s: ", MyName); | |
1397 | fprintf(stderr, f, p1, p2, p3); | |
1398 | fprintf(stderr, "\n"); | |
1399 | ||
1400 | return (-1); | |
1401 | } | |
2d351698 EA |
1402 | \f |
1403 | /* | |
d266e8cb EA |
1404 | ** SYSERR -- print system-generated error. |
1405 | ** | |
1406 | ** Parameters: | |
1407 | ** f -- format string to a printf. | |
1408 | ** p1, p2, p3 -- parameters to f. | |
1409 | ** | |
1410 | ** Returns: | |
1411 | ** never. | |
1412 | ** | |
1413 | ** Side Effects: | |
1414 | ** none. | |
1415 | */ | |
1416 | ||
64dc8483 | 1417 | /*VARARGS1*/ |
d266e8cb EA |
1418 | syserr(f, p1, p2, p3) |
1419 | char *f; | |
1420 | { | |
1421 | extern int errno; | |
1422 | ||
1423 | fprintf(stderr, "\n%s SYSERR: ", MyName); | |
1424 | fprintf(stderr, f, p1, p2, p3); | |
1425 | fprintf(stderr, "\n"); | |
1426 | if (errno == 0) | |
1427 | exit(EX_SOFTWARE); | |
1428 | else | |
1429 | { | |
64dc8483 | 1430 | perror(NULL); |
d266e8cb EA |
1431 | exit(EX_OSERR); |
1432 | } | |
1433 | } | |
6aac25be EA |
1434 | \f/* |
1435 | ** USERNAME -- return name of the current user | |
1436 | ** | |
1437 | ** Parameters: | |
1438 | ** none | |
1439 | ** | |
1440 | ** Returns: | |
1441 | ** name of current user | |
1442 | ** | |
1443 | ** Side Effects: | |
1444 | ** none | |
1445 | */ | |
1446 | ||
1447 | char * | |
1448 | username() | |
1449 | { | |
1450 | # ifdef UIDUSER | |
1451 | extern struct passwd *getpwuid(); | |
1452 | register struct passwd *pw; | |
1453 | ||
1454 | pw = getpwuid(getuid()); | |
1455 | if (pw == NULL) | |
1456 | { | |
1457 | syserr("who are you? (uid=%d)", getuid()); | |
1458 | exit(EX_OSERR); | |
1459 | } | |
1460 | return (pw->pw_name); | |
1461 | # else | |
86b78a2b | 1462 | extern char *getlogin(); |
d8a47f3b EA |
1463 | extern char *getenv(); |
1464 | register char *p; | |
86b78a2b | 1465 | |
d8a47f3b EA |
1466 | p = getenv("USER"); |
1467 | if (p == NULL || p[0] == '\0') | |
1468 | p = getlogin(); | |
1469 | return (p); | |
6aac25be EA |
1470 | # endif UIDUSER |
1471 | } |